Beer (Martian crater) 459591 177622712 2007-12-13T09:10:12Z Bryan Derksen 66 infobox {{dablink|This article refers to the crater on Mars. For other craters with this name, see [[Beer (crater)]].}} {{MarsGeo-Crater |name=Beer |eponym=[[Wilhelm Beer]] |latitude=14.5 |N_or_S=S |longitude=351.8 |E_or_W=E |diameter=33.5 km }} '''Beer''' is a crater on [[Mars (planet)|Mars]] named in honor of the German astronomer [[Wilhelm Beer]]. It is located at 351.8°E 14.5°S. Beer and collaborator [[Johann Heinrich Mädler]] produced the first reasonably good maps of Mars in the early 1830s. When doing so, they selected a particular feature for the [[prime meridian]] of their charts. Their choice was strengthened when [[Giovanni Schiaparelli]] used the same location in 1877 for his more famous maps of Mars. The feature was later called ''Sinus Meridiani'' ("Middle Bay"), but following the landing of the [[NASA]] probe [[MER-B|MER-B ''Opportunity'']] in [[2004]] is perhaps better known as [[Meridiani Planum]]. Beer crater lies in the southwest of [[Meridiani Planum]], about 8° from the prime meridian and about 10° west from [[Mädler (crater on Mars)|Mädler crater]]. [[Schiaparelli (Martian crater)|Schiaparelli crater]] is also in the region. ==External links== * [http://www.uapress.arizona.edu/onlinebks/mars/chap04.htm The Planet Mars: A History of Observation and Discovery, Chapter 4] [[Category:Craters on Mars]] [[ja:ベーア (火星のクレーター)]] [[nds:Beer (Marskrater)]] {{Mars-stub}} {{crater-stub}}